Warning: Permanently added '10.128.0.202' (ECDSA) to the list of known hosts. syzkaller login: [ 114.436592][T10985] IPVS: ftp: loaded support on port[0] = 21 [ 114.521088][T10985] chnl_net:caif_netlink_parms(): no params data found [ 114.594449][T10985] bridge0: port 1(bridge_slave_0) entered blocking state [ 114.601563][T10985] bridge0: port 1(bridge_slave_0) entered disabled state [ 114.610092][T10985] device bridge_slave_0 entered promiscuous mode [ 114.618587][T10985] bridge0: port 2(bridge_slave_1) entered blocking state [ 114.625902][T10985] bridge0: port 2(bridge_slave_1) entered disabled state [ 114.634468][T10985] device bridge_slave_1 entered promiscuous mode [ 114.659679][T10985] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 114.671473][T10985] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 114.698505][T10985] team0: Port device team_slave_0 added [ 114.706670][T10985] team0: Port device team_slave_1 added [ 114.728132][T10985] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 114.735176][T10985] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 114.761386][T10985] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 114.773735][T10985] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 114.780729][T10985] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 114.806846][T10985] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 114.875558][T10985] device hsr_slave_0 entered promiscuous mode [ 114.932772][T10985] device hsr_slave_1 entered promiscuous mode [ 115.098986][T10985] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 115.146292][T10985] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 115.206414][T10985] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 115.266284][T10985] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 115.349001][T10985] bridge0: port 2(bridge_slave_1) entered blocking state [ 115.356308][T10985] bridge0: port 2(bridge_slave_1) entered forwarding state [ 115.364149][T10985] bridge0: port 1(bridge_slave_0) entered blocking state [ 115.371298][T10985] bridge0: port 1(bridge_slave_0) entered forwarding state [ 115.432782][T10985] 8021q: adding VLAN 0 to HW filter on device bond0 [ 115.448846][ T31] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 115.461678][ T31] bridge0: port 1(bridge_slave_0) entered disabled state [ 115.471343][ T31] bridge0: port 2(bridge_slave_1) entered disabled state [ 115.480743][ T31] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 115.496868][T10985] 8021q: adding VLAN 0 to HW filter on device team0 [ 115.513100][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 115.522184][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 115.529362][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 115.563268][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 115.573206][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 115.582363][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 115.589684][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 115.598331][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 115.607891][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 115.617773][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 115.627062][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 115.636580][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 115.645953][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 115.655450][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 115.664249][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 115.676944][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 115.686984][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 115.696024][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 115.710230][T10985] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 115.737666][T10991] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 115.745580][T10991] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 115.763040][T10985] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 115.786821][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 115.797002][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 115.823092][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 115.832826][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 115.843529][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 115.853188][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 115.866439][T10985] device veth0_vlan entered promiscuous mode [ 115.880692][T10985] device veth1_vlan entered promiscuous mode [ 115.909401][T10991] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 115.919889][T10991] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 115.928932][T10991] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 115.938522][T10991] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 115.952123][T10985] device veth0_macvtap entered promiscuous mode [ 115.966076][T10985] device veth1_macvtap entered promiscuous mode [ 115.989301][T10985] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 115.996956][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 116.006315][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 116.015098][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 116.024450][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 116.041605][T10985] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 116.049988][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 116.060739][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 116.272448][ T5] ===================================================== [ 116.279424][ T5] BUG: KMSAN: use-after-free in l3mdev_master_ifindex_rcu+0x104/0x200 [ 116.287566][ T5] CPU: 0 PID: 5 Comm: kworker/0:0 Not tainted 5.6.0-rc2-syzkaller #0 [ 116.295613][ T5] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 116.305669][ T5] Workqueue: ipv6_addrconf addrconf_dad_work [ 116.311630][ T5] Call Trace: [ 116.315014][ T5] dump_stack+0x1c9/0x220 [ 116.319371][ T5] kmsan_report+0xf7/0x1e0 [ 116.323895][ T5] __msan_warning+0x58/0xa0 [ 116.328388][ T5] l3mdev_master_ifindex_rcu+0x104/0x200 [ 116.334004][ T5] ipv6_dev_get_saddr+0x516/0xe10 [ 116.339007][ T5] ? kmsan_get_metadata+0x11d/0x180 [ 116.344204][ T5] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 116.349998][ T5] ip6_dst_lookup_tail+0x1dee/0x2010 [ 116.355270][ T5] ? kmsan_get_metadata+0x4f/0x180 [ 116.360363][ T5] ? kmsan_set_origin_checked+0x95/0xf0 [ 116.365899][ T5] ? __msan_poison_alloca+0xf0/0x120 [ 116.371165][ T5] ? kmsan_get_metadata+0x4f/0x180 [ 116.376260][ T5] ip6_dst_lookup_flow+0x102/0x250 [ 116.381358][ T5] geneve_get_v6_dst+0x7c2/0xa00 [ 116.386293][ T5] ? ip6_dst_lookup_tail+0x2010/0x2010 [ 116.391731][ T5] geneve_xmit+0x5d3/0x2c20 [ 116.396216][ T5] ? __msan_metadata_ptr_for_store_4+0x13/0x20 [ 116.402367][ T5] ? skb_network_protocol+0x4d9/0x6a0 [ 116.407736][ T5] ? geneve_stop+0x400/0x400 [ 116.412305][ T5] dev_hard_start_xmit+0x531/0xab0 [ 116.417413][ T5] ? kmsan_get_metadata+0x11d/0x180 [ 116.422592][ T5] __dev_queue_xmit+0x37de/0x4220 [ 116.427611][ T5] dev_queue_xmit+0x4b/0x60 [ 116.432093][ T5] neigh_resolve_output+0xab0/0xb40 [ 116.437280][ T5] ? neigh_event_ns+0x350/0x350 [ 116.442126][ T5] ip6_finish_output2+0x20fd/0x2640 [ 116.447330][ T5] ? kmsan_get_metadata+0x11d/0x180 [ 116.452513][ T5] __ip6_finish_output+0x824/0x8e0 [ 116.457611][ T5] ip6_finish_output+0x166/0x410 [ 116.462535][ T5] ip6_output+0x60a/0x770 [ 116.466866][ T5] ? ip6_output+0x770/0x770 [ 116.471350][ T5] ? ac6_seq_show+0x200/0x200 [ 116.476005][ T5] ndisc_send_skb+0x1047/0x15a0 [ 116.480851][ T5] ? ndisc_error_report+0x1a0/0x1a0 [ 116.486045][ T5] ndisc_send_ns+0xe38/0xe80 [ 116.490618][ T5] ? __queue_delayed_work+0x27f/0x450 [ 116.495970][ T5] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 116.501763][ T5] addrconf_dad_work+0xc0b/0x2aa0 [ 116.506782][ T5] ? kmsan_get_metadata+0x11d/0x180 [ 116.511983][ T5] ? ipv6_get_saddr_eval+0x1350/0x1350 [ 116.517526][ T5] process_one_work+0x1555/0x1f40 [ 116.522542][ T5] worker_thread+0xef6/0x2450 [ 116.527201][ T5] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 116.533940][ T5] ? kmsan_get_metadata+0x11d/0x180 [ 116.539159][ T5] kthread+0x4b5/0x4f0 [ 116.543214][ T5] ? process_one_work+0x1f40/0x1f40 [ 116.548511][ T5] ? kthread_blkcg+0xf0/0xf0 [ 116.553088][ T5] ret_from_fork+0x35/0x40 [ 116.557510][ T5] [ 116.559815][ T5] Uninit was created at: [ 116.564035][ T5] kmsan_internal_poison_shadow+0x66/0xd0 [ 116.569731][ T5] kmsan_slab_free+0x6e/0xb0 [ 116.574301][ T5] kfree+0x565/0x30a0 [ 116.578265][ T5] netdev_name_node_alt_destroy+0x587/0x690 [ 116.584138][ T5] rtnl_linkprop+0x939/0xc00 [ 116.588718][ T5] rtnl_dellinkprop+0x9d/0xb0 [ 116.593374][ T5] rtnetlink_rcv_msg+0x1153/0x1570 [ 116.598466][ T5] netlink_rcv_skb+0x451/0x650 [ 116.603209][ T5] rtnetlink_rcv+0x50/0x60 [ 116.607949][ T5] netlink_unicast+0xf9e/0x1100 [ 116.612776][ T5] netlink_sendmsg+0x1246/0x14d0 [ 116.617695][ T5] ____sys_sendmsg+0x12b6/0x1350 [ 116.622609][ T5] __sys_sendmsg+0x451/0x5f0 [ 116.627189][ T5] __se_sys_sendmsg+0x97/0xb0 [ 116.631851][ T5] __x64_sys_sendmsg+0x4a/0x70 [ 116.636598][ T5] do_syscall_64+0xb8/0x160 [ 116.641080][ T5] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 116.646951][ T5] ===================================================== [ 116.653861][ T5] Disabling lock debugging due to kernel taint [ 116.659989][ T5] Kernel panic - not syncing: panic_on_warn set ... [ 116.666559][ T5] CPU: 0 PID: 5 Comm: kworker/0:0 Tainted: G B 5.6.0-rc2-syzkaller #0 [ 116.676000][ T5] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 116.686049][ T5] Workqueue: ipv6_addrconf addrconf_dad_work [ 116.692005][ T5] Call Trace: [ 116.695279][ T5] dump_stack+0x1c9/0x220 [ 116.699619][ T5] panic+0x3d5/0xc3e [ 116.703514][ T5] kmsan_report+0x1df/0x1e0 [ 116.708000][ T5] __msan_warning+0x58/0xa0 [ 116.712501][ T5] l3mdev_master_ifindex_rcu+0x104/0x200 [ 116.718116][ T5] ipv6_dev_get_saddr+0x516/0xe10 [ 116.723123][ T5] ? kmsan_get_metadata+0x11d/0x180 [ 116.728403][ T5] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 116.734193][ T5] ip6_dst_lookup_tail+0x1dee/0x2010 [ 116.739461][ T5] ? kmsan_get_metadata+0x4f/0x180 [ 116.744558][ T5] ? kmsan_set_origin_checked+0x95/0xf0 [ 116.750090][ T5] ? __msan_poison_alloca+0xf0/0x120 [ 116.755356][ T5] ? kmsan_get_metadata+0x4f/0x180 [ 116.760458][ T5] ip6_dst_lookup_flow+0x102/0x250 [ 116.765557][ T5] geneve_get_v6_dst+0x7c2/0xa00 [ 116.770478][ T5] ? ip6_dst_lookup_tail+0x2010/0x2010 [ 116.775918][ T5] geneve_xmit+0x5d3/0x2c20 [ 116.780402][ T5] ? __msan_metadata_ptr_for_store_4+0x13/0x20 [ 116.786535][ T5] ? skb_network_protocol+0x4d9/0x6a0 [ 116.791903][ T5] ? geneve_stop+0x400/0x400 [ 116.796472][ T5] dev_hard_start_xmit+0x531/0xab0 [ 116.801567][ T5] ? kmsan_get_metadata+0x11d/0x180 [ 116.806750][ T5] __dev_queue_xmit+0x37de/0x4220 [ 116.811771][ T5] dev_queue_xmit+0x4b/0x60 [ 116.816259][ T5] neigh_resolve_output+0xab0/0xb40 [ 116.821448][ T5] ? neigh_event_ns+0x350/0x350 [ 116.826278][ T5] ip6_finish_output2+0x20fd/0x2640 [ 116.831472][ T5] ? kmsan_get_metadata+0x11d/0x180 [ 116.836655][ T5] __ip6_finish_output+0x824/0x8e0 [ 116.841753][ T5] ip6_finish_output+0x166/0x410 [ 116.846675][ T5] ip6_output+0x60a/0x770 [ 116.851006][ T5] ? ip6_output+0x770/0x770 [ 116.855502][ T5] ? ac6_seq_show+0x200/0x200 [ 116.860170][ T5] ndisc_send_skb+0x1047/0x15a0 [ 116.865026][ T5] ? ndisc_error_report+0x1a0/0x1a0 [ 116.870251][ T5] ndisc_send_ns+0xe38/0xe80 [ 116.874838][ T5] ? __queue_delayed_work+0x27f/0x450 [ 116.880194][ T5] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 116.885992][ T5] addrconf_dad_work+0xc0b/0x2aa0 [ 116.891021][ T5] ? kmsan_get_metadata+0x11d/0x180 [ 116.896222][ T5] ? ipv6_get_saddr_eval+0x1350/0x1350 [ 116.901668][ T5] process_one_work+0x1555/0x1f40 [ 116.906741][ T5] worker_thread+0xef6/0x2450 [ 116.911417][ T5] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 116.917205][ T5] ? kmsan_get_metadata+0x11d/0x180 [ 116.922398][ T5] kthread+0x4b5/0x4f0 [ 116.926444][ T5] ? process_one_work+0x1f40/0x1f40 [ 116.931641][ T5] ? kthread_blkcg+0xf0/0xf0 [ 116.936235][ T5] ret_from_fork+0x35/0x40 [ 116.942006][ T5] Kernel Offset: 0xd600000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) [ 116.953584][ T5] Rebooting in 86400 seconds..